Given that they're making use of a virus in their delivery system I suspect that they might be using the viruses to carry engineered protein/DNA strands for delivery into target cells, in which case modifying T-cells so that they recognise/destroy cancerous cells could be on the cards. One proposed therapy I heard of a couple months ago makes use of a virus which only enters dividing cells (you inject the viruses at the site of cancer and most of them enter cancer cells given their rapid division) and the DNA they insert causes a certain protein to be expressed on the surface of those cells. A little later the patient could be given a drug which targets these surface proteins, effectively sending a message saying 'die' to the cell. Voila, cancer cells killed (though probably not without taking out some other cell types as well... blood cells in particular, including immune cells, since they multiply so quickly). In any case, a lot of this stuff is still either theoretical or experimental but the ideas are certainly fascinating.sam04u said:Basically though, the only way to prevent replication of the cancerous cell is to destroy it, with modified T-Lymphocyte Cells specifically made to target the cancerous cells. It's still dangerous but destroys any chance of these cells reoccuring.